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age related cognitive decline

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https://www.readbyqxmd.com/read/29346658/potential-for-diet-to-prevent-and-remediate-cognitive-deficits-in-neurological-disorders
#1
Heather M Francis, Richard J Stevenson
The pathophysiology of many neurological disorders involves oxidative stress, neuroinflammation, and mitochondrial dysfunction. There is now substantial evidence that diet can decrease these forms of pathophysiology, and an emerging body of literature relatedly suggests that diet can also prevent or even remediate the cognitive deficits observed in neurological disorders that exhibit such pathology (eg, Alzheimer's disease, multiple sclerosis, age-related cognitive decline, epilepsy). The current review summarizes the emerging evidence in relation to whole diets prominent in the scientific literature-ketogenic, caloric restriction, high polyphenol, and Mediterranean diets-and provides a discussion of the possible underlying neurophysiological mechanisms...
January 15, 2018: Nutrition Reviews
https://www.readbyqxmd.com/read/29345974/cognitive-effects-of-cancer-and-cancer-treatments
#2
Tim A Ahles, James C Root
As the population of cancer survivors has grown into the millions, there has been increasing emphasis on understanding how the late effects of treatment affect survivors' ability to return to work/school, their capacity to function and live independently, and their overall quality of life. This review focuses on cognitive change associated with cancer and cancer treatments. Research in this area has progressed from a pharmacotoxicology perspective to a view of the cognitive change as a complex interaction of aspects of the treatment, vulnerability factors that increase risk for posttreatment cognitive decline, cancer biology, and the biology of aging...
January 18, 2018: Annual Review of Clinical Psychology
https://www.readbyqxmd.com/read/29345732/near-visual-impairment-incidence-in-relation-to-diabetes-in-older-people-the-three-cities-study
#3
Marie Danet-Lamasou, Karine Pérès, Fanny Matharan, Claudine Berr, Isabelle Carrière, Christophe Tzourio, Cécile Delcourt, Isabelle Bourdel-Marchasson
OBJECTIVES: To characterize the relationship between diabetes mellitus (DM) and future risk of near vision impairment (VI) in a community-dwelling population of older people. DESIGN: Seven-year population-based longitudinal study. SETTING: Three-Cities Study, a French prospective study designed to assess the risk of cognitive and functional decline attributable to vascular factors. PARTICIPANTS: Community-dwelling individuals aged 65 and older (N = 8,412)...
January 18, 2018: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/29344423/age-related-gray-and-white-matter-changes-in-normal-adult-brains
#4
Farnaz Farokhian, Chunlan Yang, Iman Beheshti, Hiroshi Matsuda, Shuicai Wu
Normal aging is associated with both structural changes in many brain regions and functional declines in several cognitive domains with advancing age. Advanced neuroimaging techniques enable explorative analyses of structural alterations that can be used as assessments of such age-related changes. Here we used voxel-based morphometry (VBM) to investigate regional and global brain volume differences among four groups of healthy adults from the IXI Dataset: older females (OF, mean age 68.35 yrs; n=69), older males (OM, 68...
December 2017: Aging and Disease
https://www.readbyqxmd.com/read/29339150/altered-function-of-neuronal-l-type-calcium-channels-in-ageing-and-neuroinflammation-implications-in-age-related-synaptic-dysfunction-and-cognitive-decline
#5
REVIEW
Sheeja Navakkode, Chao Liu, Tuck Wah Soong
The rapid developments in science have led to an increase in human life expectancy and thus, ageing and age-related disorders/diseases have become one of the greatest concerns in the 21st century. Cognitive abilities tend to decline as we get older. This age-related cognitive decline is mainly attributed to aberrant changes in synaptic plasticity and neuronal connections. Recent studies show that alterations in Ca2+ homeostasis underlie the increased vulnerability of neurons to age-related processes like cognitive decline and synaptic dysfunctions...
January 12, 2018: Ageing Research Reviews
https://www.readbyqxmd.com/read/29338747/oxidative-stress-predicts-cognitive-decline-with-aging-in-healthy-adults-an-observational-study
#6
Ihab Hajjar, Salim S Hayek, Felicia C Goldstein, Greg Martin, Dean P Jones, Arshed Quyyumi
BACKGROUND: Redox signaling, which can be assessed by circulating aminothiols, reflects oxidative stress (OS) status and has been linked to clinical cardiovascular disease and its risk factors. These, in turn, are related to executive function decline. OS may precede the pro-inflammatory state seen in vascular disease. The objective of this study is to investigate the association between aminothiol markers of OS and inflammation in cognitive decline, especially in the executive cognitive domain which is highly susceptible to cardiovascular risk factors and is an important predictor of cognitive disability...
January 16, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29338302/neurotransmitter-pathway-genes-in-cognitive-decline-during-aging-evidence-for-gng4-and-kcnq2-genes
#7
Luke W Bonham, Daniel S Evans, Yongmei Liu, Steven R Cummings, Kristine Yaffe, Jennifer S Yokoyama
BACKGROUND/RATIONALE: Experimental studies support the role of neurotransmitter genes in dementia risk, but human studies utilizing single variants in candidate genes have had limited success. METHODS: We used the gene-based testing program Versatile Gene-based Association Study to assess whether aggregate variation across 6 neurotransmitter pathways influences risk of cognitive decline in 8159 cognitively normal elderly (≥65 years old) adults from 3 community-based cohorts...
January 1, 2018: American Journal of Alzheimer's Disease and Other Dementias
https://www.readbyqxmd.com/read/29337277/compensatory-dopaminergic-cholinergic-interactions-in-conflict-processing-evidence-from-patients-with-parkinson-s-disease
#8
REVIEW
Kamin Kim, Nicolaas I Bohnen, Martijn L T M Müller, Cindy Lustig
Executive functions are complex both in the cognitive operations involved and in the neural structures and functions that support those operations. This complexity makes executive function highly vulnerable to the detrimental effects of aging, brain injury, and disease, but may also open paths to compensation. Neural compensation is often used to explain findings of additional or altered patterns of brain activations by older adults or patient populations compared to young adults or healthy controls, especially when associated with relatively preserved performance...
January 11, 2018: NeuroImage
https://www.readbyqxmd.com/read/29335318/longitudinal-effect-of-stroke-on-cognition-a-systematic-review
#9
REVIEW
Eugene Yh Tang, Obreniokibo Amiesimaka, Stephanie L Harrison, Emma Green, Christopher Price, Louise Robinson, Mario Siervo, Blossom Cm Stephan
BACKGROUND: Stroke is associated with an increased risk of dementia; however, the impact of stroke on cognition has been found to be variable, such that stroke survivors can show decline, remain stable, or revert to baseline cognitive functioning. Knowing the natural history of cognitive impairment after stroke is important for intervention. The aim of this systematic review is to investigate the longitudinal course of cognitive function in stroke survivors. METHODS AND RESULTS: Three electronic databases (Medline, Embase, PsycINFO) were searched using OvidSP from inception to July 15, 2016...
January 15, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29332050/supplemental-retinal-carotenoids-enhance-memory-in-healthy-individuals-with-low-levels-of-macular-pigment-in-a-randomized-double-blind-placebo-controlled-clinical-trial
#10
Rebecca Power, Robert F Coen, Stephen Beatty, Riona Mulcahy, Rachel Moran, Jim Stack, Alan N Howard, John M Nolan
BACKGROUND: There is a biologically plausible rationale whereby the dietary carotenoids lutein (L), zeaxanthin (Z), and meso-zeaxanthin (MZ), which are collectively referred to as macular pigment (MP) in the central retina (macula), support the maintenance of cognition via their antioxidant and anti-inflammatory properties. OBJECTIVE: To investigate the impact of supplemental L, Z, and MZ on memory, executive function, and verbal fluency among healthy individuals with low MP levels...
2018: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29331792/candesartan-angiotensin-ii-type-1-receptor-blocker-is-able-to-relieve-age-related-cognitive-impairment
#11
Emil Trofimiuk, Przemysław Wielgat, Jan J Braszko
BACKGROUND: Candesartan is one of the standard antihypertensive drug belonging to AT1R angiotensin receptor blockers (ARBs) group. Beneficial effects of this drug in the treatment of hypertension are well recognized. In this study we tested a hypothesis that candesartan could alleviate age-related memory decline. METHODS: Aged and young rats have been treated with candesartan (0.1 mg kg-1) for 21 days and then underwent a battery of behavioral tests: for assessment of long-term memory (Passive avoidance test - PA), recognition memory (Object recognition test - OR), locomotor functions (Open field - OF) and anxiety behavior (Elevated plus maze - EPM)...
July 21, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/29328926/dna-damage-associated-oligodendrocyte-degeneration-precedes-amyloid-pathology-and-contributes-to-alzheimer-s-and-dementia
#12
Kai-Hei Tse, Aifang Cheng, Fulin Ma, Karl Herrup
INTRODUCTION: In looking for novel non-amyloid-based etiologies for Alzheimer's disease, we explore the hypothesis that age-related myelin loss is an attractive explanation for age-associated cognitive decline and dementia. METHODS: We performed a meta-analysis of data in the National Alzheimer's Coordinating Center database accompanied by quantitative histopathology of myelin and oligodendrocytes (OLs) in frontal cortices of 24 clinically characterized individuals...
January 9, 2018: Alzheimer's & Dementia: the Journal of the Alzheimer's Association
https://www.readbyqxmd.com/read/29326402/ageing-in-individuals-with-intellectual-disability-issues-and-concerns-in-hong-kong
#13
REVIEW
M My Tse, R Yc Kwan, J L Lau
INTRODUCTION: The increasing longevity of people with intellectual disability is testimony to the positive developments in medical intervention. Nonetheless early-onset age-related issues and concerns cause deterioration of their overall well-being. This paper aimed to explore the issues and concerns about individuals with intellectual disability as they age. METHODS: Articles that discussed people with intellectual disability over 30 years of age, and those that identified ageing health issues and concerns were included...
January 12, 2018: Hong Kong Medical Journal, Xianggang Yi Xue za Zhi
https://www.readbyqxmd.com/read/29325011/cognitive-complaints-in-memory-clinic-patients-and-in-depressive-patients-an-interpretative-phenomenological-analysis
#14
Lisa Miebach, Steffen Wolfsgruber, Ingo Frommann, Klaus Fließbach, Frank Jessen, Rachel Buckley, Michael Wagner
Background and Objectives: Cognitive complaints are discussed as early signs of Alzheimer's disease (AD). However, they are also very common in cognitively normal older adults and in patients with depression. Qualitative, interview-based approaches might be useful to identify those features of cognitive complaints specific for the experiences of cognitive decline in preclinical or prodromal AD versus those complaints typically reported by depressed patients. Research Design and Methods: A semi-structured interview was administered to 21 cognitively normal older adults (HC), 18 nondemented memory clinic patients (MC), and 11 patients with a major depression (MD), all above 55 years...
January 8, 2018: Gerontologist
https://www.readbyqxmd.com/read/29324915/self-report-instruments-of-cognitive-failures-as-screening-tools-for-subjective-cognitive-impairment-in-older-adults
#15
Vasileios Papaliagkas, G Papantoniou, Magda Tsolaki, Despina Moraitou
BACKGROUND: The term "Subjective Cognitive Impairment (SCI)" is the most widely accepted term for cognitive complaints of otherwise apparently healthy older adults. It is presently clear that SCI might be a risk factor for the development of Mild Cognitive Impairment and dementia. As regards SCI measurement and potential diagnosis, several studies showed that SCI is a condition in which people score in the normal range on common tests but believe they experience cognitive decline. Hence, to assess the characteristic of the SCI subtle cognitive decline, self-report measures were developed to estimate "self-experience" of minimal decline in cognition seem the most appropriate tools...
September 2017: Hellenic Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/29322089/the-wisconsin-registry-for-alzheimer-s-prevention-a-review-of-findings-and-current-directions
#16
REVIEW
Sterling C Johnson, Rebecca L Koscik, Erin M Jonaitis, Lindsay R Clark, Kimberly D Mueller, Sara E Berman, Barbara B Bendlin, Corinne D Engelman, Ozioma C Okonkwo, Kirk J Hogan, Sanjay Asthana, Cynthia M Carlsson, Bruce P Hermann, Mark A Sager
The Wisconsin Registry for Alzheimer's Prevention is a longitudinal observational cohort study enriched with persons with a parental history (PH) of probable Alzheimer's disease (AD) dementia. Since late 2001, Wisconsin Registry for Alzheimer's Prevention has enrolled 1561 people at a mean baseline age of 54 years. Participants return for a second visit 4 years after baseline, and subsequent visits occur every 2 years. Eighty-one percent (1270) of participants remain active in the study at a current mean age of 64 and 9 years of follow-up...
2018: Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring
https://www.readbyqxmd.com/read/29321231/chronic-traumatic-encephalopathy-in-an-epilepsy-surgery-cohort-clinical-and-pathologic-findings
#17
Amy L Jones, Jeffrey W Britton, Melissa M Blessing, Joseph E Parisi, Gregory D Cascino
OBJECTIVE: To determine the occurrence of chronic traumatic encephalopathy (CTE) in young adult patients undergoing epilepsy surgery. METHODS: Ten patients who underwent epilepsy surgery were randomly selected for this retrospective study. The patients were 18-45 years of age, had preoperative neuropsychological evaluation, and had 1 year postoperative follow-up. Microscopic sections from resections were evaluated for the presence of CTE with standard stains and antibodies to tau (clone AT8)...
January 10, 2018: Neurology
https://www.readbyqxmd.com/read/29318446/vitamin-d-improves-neurogenesis-and-cognition-in-a-mouse-model-of-alzheimer-s-disease
#18
Maria Morello, Véréna Landel, Emmanuelle Lacassagne, Kevin Baranger, Cedric Annweiler, François Féron, Pascal Millet
The impairment of hippocampal neurogenesis at the early stages of Alzheimer's disease (AD) is believed to support early cognitive decline. Converging studies sustain the idea that vitamin D might be linked to the pathophysiology of AD and to hippocampal neurogenesis. Nothing being known about the effects of vitamin D on hippocampal neurogenesis in AD, we assessed them in a mouse model of AD. In a previous study, we observed that dietary vitamin D supplementation in female AD-like mice reduced cognitive decline only when delivered during the symptomatic phase...
January 9, 2018: Molecular Neurobiology
https://www.readbyqxmd.com/read/29317593/loneliness-5-years-ante-mortem-is-associated-with-disease-related-differential-gene-expression-in-postmortem-dorsolateral-prefrontal-cortex
#19
Turhan Canli, Lei Yu, Xiaoqing Yu, Hongyu Zhao, Debra Fleischman, Robert S Wilson, Philip L De Jager, David A Bennett
Subjective social isolation, loneliness, is associated with poor mental and physical health, but the underlying molecular mechanisms are poorly understood. Here we analyzed loneliness data collected on average 5 years ante-mortem and RNA gene expression at death in postmortem dorsolateral prefrontal cortex (DLPFC) from 181 participants in the Rush Memory and Aging Project (MAP), a longitudinal, prospective cohort study of common chronic conditions of aging. Our analytic protocol controlled for biographical variables (age, sex, education), psychological and health variables (depressive symptoms, interval between assessment and autopsy, slope of cognitive decline, AD pathology, presence of infarcts) and RNA integrity...
January 10, 2018: Translational Psychiatry
https://www.readbyqxmd.com/read/29317248/cognitive-decline-and-increased-hippocampal-p-tau-expression-in-mice-with-hearing-loss
#20
So Young Park, Min Jung Kim, Hong Lim Kim, Dong Kee Kim, Sang Won Yeo, Shi Nae Park
Hearing and cognition are commonly involved in both normal and pathological aging. Current clinical interest lies in whether peripheral hearing loss promotes cognitive decline. In our previous publication, the authors have shown a causal relationship between hearing and cognitive impairments in C57BL/6 mice. Here we extended the follow-up to 12 months to determine the long-term effects of hearing loss on cognition and to observe hippocampal p-tau and lipofuscin. One month old male mice were randomly allocated into two groups, the control (n = 12) and noise-induced hearing loss (NIHL) (n = 12)...
January 6, 2018: Behavioural Brain Research
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